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  Dual routes for verbal repetition: Articulation-based and acoustic-phonetic codes for pseudoword and word repetition, respectively

Yoo, S., Chung, J.-Y., Jeon, H.-A., Lee, K.-M., Young-Bo, K., & Zang-Hee, C. (2012). Dual routes for verbal repetition: Articulation-based and acoustic-phonetic codes for pseudoword and word repetition, respectively. Brain and Language, 122(1), 1-10. doi:10.1016/j.bandl.2012.04.011.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-87C0-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-CC61-A
Genre: Journal Article

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 Creators:
Yoo, Sejin1, Author
Chung, Jun-Young2, 3, Author
Jeon, Hyeon-Ae4, Author              
Lee, Kyoung-Min1, 5, Author
Young-Bo, Kim3, Author
Zang-Hee, Cho3, Author
Affiliations:
1Interdisciplinary Program in Cognitive Science, Seoul National University, Republic of Korea, ou_persistent22              
2Department of Biomedical Engineering, Eulji University, Daejeon, Republic of Korea, ou_persistent22              
3Neuroscience Research Institute, Gachon Medical School, Incheon, Republic of Korea, ou_persistent22              
4Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              
5Department of Neurology, Seoul National University Hospital, Republic of Korea, ou_persistent22              

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Free keywords: Speech perception; Speech production; Verbal repetition; Audition–articulation interface; Dual-stream model; Imitative learning
 Abstract: Speech production is inextricably linked to speech perception, yet they are usually investigated in isolation. In this study, we employed a verbal-repetition task to identify the neural substrates of speech processing with two ends active simultaneously using functional MRI. Subjects verbally repeated auditory stimuli containing an ambiguous vowel sound that could be perceived as either a word or a pseudoword depending on the interpretation of the vowel. We found verbal repetition commonly activated the audition–articulation interface bilaterally at Sylvian fissures and superior temporal sulci. Contrasting word-versus-pseudoword trials revealed neural activities unique to word repetition in the left posterior middle temporal areas and activities unique to pseudoword repetition in the left inferior frontal gyrus. These findings imply that the tasks are carried out using different speech codes: an articulation-based code of pseudowords and an acoustic–phonetic code of words. It also supports the dual-stream model and imitative learning of vocabulary.

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Language(s): eng - English
 Dates: 2012-04-212012-05-242012-07
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.bandl.2012.04.011
PMID: 22632812
Other: Epub 2012
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Title: Brain and Language
Source Genre: Journal
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Publ. Info: Orlando, Fla. : Academic Press
Pages: - Volume / Issue: 122 (1) Sequence Number: - Start / End Page: 1 - 10 Identifier: ISSN: 0093-934X
CoNE: /journals/resource/954922647078